package jdbc;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;

public class JDBCDemo7 {
    public static void main(String[] args) {
        UserInfo userInfo = InputUtil.getInputObject(new UserInfo(),"欢迎登录","登录");

        try (
                Connection connection = DBUtill.getConnection()
        ){
            String sql = "SELECT id,username,password,nickname,age " +
                    "FROM userinfo " +
                    "WHERE username = ? " +
                    "AND password = ?";
            PreparedStatement pr =  connection.prepareStatement(sql);
            pr.setString(1,userInfo.getUsername());
            pr.setString(2,userInfo.getPassword());
            ResultSet rs = pr.executeQuery();
            if (rs.next()){
                System.out.println("登录成功,欢迎你"+rs.getString("nickname"));
            }else {
                System.out.println("登录失败,用户名或密码不正确");
            }

        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}
